Preparation method for thermoset resin/waste rubber powder/waste tire fiber composite material

A fiber composite material and waste rubber powder technology, applied in the field of environmental materials, can solve the problems of serious pollution of the atmosphere and surrounding environment, failure to reflect the use value, waste of fiber materials, etc., and achieve good industrialization prospects, broaden utilization methods, and low cost Effect

Inactive Publication Date: 2010-06-30
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because waste fibers contain part of vulcanized rubber, when these waste fibers and rubber are burned, a large amount of carbon dioxide and sulfur dioxide gas will be generated, which seriously pollutes the atmosphere and the surrounding environment. At the same time, it also wastes the available fiber materials and fails to reflect its proper use value

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] (1) Mix 30 parts of styrene monomer and 30 parts of 80-mesh waste rubber powder evenly, seal and place for 24 hours; weigh 3 parts of γ-methacryloxypropyltrimethoxysilane in a certain amount of distilled water , made into a 1%wt aqueous solution, adding 110 parts of waste tire fibers to the aqueous solution of γ-methacryloxypropyltrimethoxysilane, soaked for 30min, and then dried in an oven at 105°C for 3 hours before use .

[0030] (2) 40 parts of calcium carbonate, 100 parts of unsaturated polyester resin, 4 parts of 1,1-bis(tert-butyl peroxide)-3,3,5-trimethylcyclohexane were pre-mixed successively, and then Add the waste rubber powder and waste fiber processed in step (1), and put it into an internal mixer for mixing evenly;

[0031] (3) The rubber compound obtained in step (2) was molded at a temperature of 145° C. for 12 minutes.

[0032] The mechanical properties of the sample obtained in Example 1 are measured as follows: tensile strength 16.2Mpa; flexural mod...

Embodiment 2

[0035](1) Mix 10 parts of acrylamide monomer with 10 parts of 120 mesh waste rubber powder; stir 6 parts of phenolic resin and 20 parts of waste tire fiber with a mixer;

[0036] (2) 40 parts of white carbon black, 100 parts of epoxy resin, 80 parts of hexahydrophthalic anhydride, 3 parts of dimethylbenzylamine are pre-mixed successively, and 50 parts of glass fiber and 20 parts of 200 mesh nitrile rubber are added, Mix evenly with an open mill, then add the treated waste rubber powder and waste fiber, mix evenly and set aside;

[0037] (3) The rubber compound obtained in (2) was molded at a temperature of 160° C. and a pressure of 7 MPa for 60 minutes.

[0038] The mechanical properties of the sample obtained in Example 2 are measured as follows: tensile strength 35.2Mpa; flexural modulus 2219.0MPa; flexural strength 63.7MPa; unnotched impact strength 19.8KJ / m 2 .

Embodiment 3

[0040] (1) Mix 20 parts of methacrylic acid monomer, 10 parts of methyl methacrylate monomer and 60 parts of 200 mesh waste rubber powder; weigh 3 parts of γ-diethylenetriaminotriethoxy A 1%wt aqueous solution made of silane, add 150 parts of waste fiber to the γ-diethylenetriaminotriethoxysilane aqueous solution, soak for 120min, then dry in an oven at 105°C for 3 hours before use .

[0041] (2) Pre-mix 10 parts of magnesium oxide, 100 parts of phenolic resin, and 8 parts of hexamethylenetetramine in sequence, then add the waste rubber powder and waste fiber treated in (1), and put them in a kneader to knead evenly ;

[0042] (3) Inject the compound obtained in (2) at a temperature of 140°C.

[0043] The mechanical properties of the sample obtained in Example 3 are measured as follows: tensile strength 23.3Mpa; flexural modulus 1600.0Mpa; flexural strength 56.3Mpa; unnotched impact strength 23.3KJ / m 2 .

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Abstract

The invention discloses a thermoset resin / waste rubber powder / waste tire fiber environment-friendly composite material and a preparation method thereof. The thermoset resin is used as a base body and an adhesive, a waste tire fiber is used as a reinforcing and toughening material, and the waste rubber powder is used as a toughening and filling material. The surface of the waste rubber powder is processed by a monomer and the waste tire fiber is processed by a modifying agent, thereby effectively improving the interface combination of each component of the composite material. The environment-friendly composite material with the advantages of light weight, excellent mechanical property, wide temperature using range and low cost can be prepared by adopting the process of mould pressing or injection moulding and adjusting the proportion of each component.

Description

technical field [0001] The invention relates to the field of environmental materials, in particular to a method for preparing a thermosetting resin / waste rubber powder / waste tire fiber composite material. Background technique [0002] Our country is in a stage of rapid development, and the concept of sustainable development is our only way. With the improvement of people's living standards and the development of the automobile industry, the number of family car ownership is constantly increasing. However, the accompanying solid waste pollution is becoming more and more serious. According to statistics, my country currently produces more than 100 million waste tires per year, and the growth rate is increasing. In addition, there are a large number of other waste rubber products in life. How to deal with and utilize such a large amount of waste tires and waste rubber is a very urgent and major issue for my country's environmental protection and sustainable development. [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/06C08L63/00C08L61/06C08L21/00C08L101/00
Inventor 王小萍刘志坚贾德民朱立新
Owner SOUTH CHINA UNIV OF TECH
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